Introduction
This manual provides detailed instructions for the safe and efficient operation of your DREO DR-HAP008 Air Purifier. Please read this manual thoroughly before use and retain it for future reference.
Important Safety Instructions
- Always place the air purifier on a firm, level surface.
- Keep the appliance away from heat sources and direct sunlight.
- Do not block air inlets or outlets.
- Unplug the air purifier before cleaning or performing any maintenance.
- Do not operate with a damaged cord or plug.
- This appliance is for household use only.
Package Contents
- 1 × DREO Air Purifier (DR-HAP008)
- 1 × Filter (Pre-installed)
- 1 × User Manual
- 3 × Aroma Pads (1 Pre-installed)
Product Overview
Familiarize yourself with the components of your DREO Air Purifier.

Image: Front view of the DREO DR-HAP008 Air Purifier, showing the control panel and air quality indicator light.

Image: DREO DR-HAP008 Air Purifier next to an AHAM Verified label indicating its performance metrics.
Control Panel
The control panel features touch-sensitive buttons and an LED display for various functions.

Image: Close-up of the air purifier's control panel, showing power, fan speed, mode, timer, and display off buttons.
Setup
- Unpack the Filter: Before first use, open the bottom cover of the air purifier and remove the plastic packaging from the filter.
- Install the Filter: Place the unwrapped filter back into the air purifier and secure the bottom cover.
- Position the Purifier: Place the air purifier on a flat, stable surface, ensuring adequate clearance around air inlets and outlets.
- Connect Power: Plug the power cord into a suitable electrical outlet.

Image: Illustration showing how to access and unwrap the filter from the bottom of the air purifier.
Video: Official DREO video demonstrating the setup and initial use of the DREO Home Air Purifier 338.
Operating Instructions
Power On/Off
Press the power button (⑁) on the control panel to turn the air purifier on or off.
Fan Speed Adjustment
Press the fan speed button (☸) repeatedly to cycle through 4 fan speeds: 1 (Low), 2 (Medium), 3 (High), 4 (Turbo).
Video: A short preview video demonstrating the fan speed adjustment on the DREO Air Purifier.
Operating Modes
The air purifier offers several operating modes:
- Auto Mode: The purifier automatically adjusts fan speed based on real-time air quality detected by the PM2.5 sensor.
- Turbo Mode: Provides maximum purification power for rapid air cleaning.
- Sleep Mode: Operates at the lowest fan speed (18dB) and turns off display lights for quiet operation during sleep.
- Normal Mode: Allows manual selection of fan speeds 1-3.

Image: DREO DR-HAP008 Air Purifier operating in a bedroom, highlighting its quiet sleep mode.

Image: Diagram illustrating the four operating modes (Auto, Sleep, Normal, Turbo) and four fan speeds of the air purifier.
PM2.5 Monitoring and Air Quality Indicator
The integrated PM2.5 sensor provides real-time air quality readings on the LED display. The 4-color RGB indicator light changes color to reflect air quality:
- Blue: Excellent Air Quality (PM2.5 0-10)
- Green: Good Air Quality (PM2.5 11-30)
- Orange: Moderate Air Quality (PM2.5 31-150)
- Red: Poor Air Quality (PM2.5 151-999)

Image: Close-up of the air purifier's display showing PM2.5 levels and the corresponding color-coded air quality indicator.
Scent Diffuser Function
The air purifier includes a scent diffuser tray. Add a few drops of essential oil to the aroma pad in the tray to release fragrance into the air.

Image: A person adding essential oils to the aroma pad of the DREO DR-HAP008 Air Purifier.
Maintenance
Filter Replacement
The 3-in-1 HEPA filter should be replaced regularly to maintain optimal performance. The air purifier will indicate when a filter change is due. To replace:
- Unplug the air purifier.
- Open the bottom cover.
- Remove the old filter.
- Insert a new DREO DR-HAP008 replacement filter (ensure plastic packaging is removed).
- Close the bottom cover.
- Plug in the air purifier and reset the filter indicator (refer to the control panel section for specific instructions if available, or general reset procedure).

Image: A DREO Genuine Replacement Filter for Air Purifier 338/338S (DR-HAP008/008S).

Image: An exploded view illustrating the three layers of the DREO filter: Pre-Filter, HEPA Filter, and Activated Carbon.
Cleaning
- Wipe the exterior of the air purifier with a soft, dry cloth.
- Do not use abrasive cleaners or solvents.
- The pre-filter can be gently vacuumed to remove large dust particles between replacements.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Air purifier does not turn on. | Not plugged in; power outlet malfunction; filter not installed correctly. | Ensure power cord is securely plugged in; test outlet with another device; check filter installation and ensure bottom cover is closed. |
| Airflow is weak. | Filter is dirty or clogged; air inlets/outlets are blocked. | Replace the filter; ensure no obstructions around the air purifier. |
| Unusual noise. | Filter not seated correctly; foreign object inside. | Reinstall filter; unplug and check for foreign objects. |
| Air quality indicator always red/orange. | High level of pollutants in the environment; sensor is dirty. | Allow more time for purification; clean the PM2.5 sensor (refer to detailed cleaning instructions if available). |
Specifications
| Feature | Detail |
|---|---|
| Model Number | DR-HAP008 |
| Product Dimensions | 9.21 x 9.21 x 14.21 inches |
| Item Weight | 5.57 pounds |
| Power Source | Corded Electric |
| Control Method | Touch |
| Filter Type | HEPA (3-in-1) |
| Floor Area Coverage | Up to 856 sq. ft. (1 ACH) / 178 sq. ft. (4.8 ACH) |
| Noise Level | 18 dB (lowest setting) |
| Particle Retention Size | 0.3 micrometer |
| Contaminant Filtration | Cigarette Smoke, Dust, Odors, PM2.5, Pet Dander |
| Certifications | AHAM Certified, CARB Certified, EPA Certified, ETL Certified, Energy Star Certified |
Warranty and Support
DREO provides a warranty for this product. For detailed warranty information, product registration, or technical support, please refer to the official DREO website or contact customer service. Contact information can typically be found in the included user manual or on the manufacturer's website.
Online Support: www.dreo.com/support